Felsic metavolcanic rocks of 1835- to 1845-Ma age group

Rhyolite to dacite and, locally, andesite tuff, breccia, and minor sedimentary rocks, including conglomerate. Exposed in central Wisconsin.
State Wisconsin
Name Felsic metavolcanic rocks of 1835- to 1845-Ma age group
Geologic age Early Proterozoic
Lithologic constituents
Major
Igneous > Volcanic > Felsic-volcanic > Rhyolite (Flow)Rhyolite to dacite and, locally, andesite tuff, breccia, and minor sedimentary rocks, including conglomerate.
Igneous > Volcanic > Felsic-volcanic > Dacite (Flow)Rhyolite to dacite and, locally, andesite tuff, breccia, and minor sedimentary rocks, including conglomerate.
Incidental
Sedimentary > Clastic > Conglomerate (Bed)Rhyolite to dacite and, locally, andesite tuff, breccia, and minor sedimentary rocks, including conglomerate.
Igneous > Volcanic > Felsic-volcanic (Volcaniclastic-volcanic breccia)Rhyolite to dacite and, locally, andesite tuff, breccia, and minor sedimentary rocks, including conglomerate.
Igneous > Volcanic > Mafic-volcanic > Andesite (Pyroclastic-tuff)Rhyolite to dacite and, locally, andesite tuff, breccia, and minor sedimentary rocks, including conglomerate.
Comments Pembine-Wausau terrane
References
NGMDB product
Counties Langlade - Lincoln - Marathon